This is the 2875th most frequent Chinese word.
改建
To renovate or reconstruct.
改建 refers to remodeling or reconstructing in the context of a building or structure's usage.
他们正在改建旧工厂。
They are remodeling the old factory.
改建 indicates rebuilding or modifying infrastructure to accommodate new specifications.
这座桥需要彻底改建以适应新的交通需求。
This bridge needs to be completely rebuilt to meet new traffic demands.
改建 is used here to describe the adaptation of a structure from its original purpose to a new one.